. >>> tests showed that star nfl linebacker junior seau suffered from neurodegenerative brain disease that can result from multiple hits to the head. the national institutes of health released the results today. seau's family donated his brain for examination after he fatally shot himself last year. >>> and down under, flames and fear. >> we saw tornadoes of fire coming across, towards us. and the next thing we knew, everything was on fire everywhere, all around us. >> so this is what they did to escape the wildfire in tasmania, australia. now that's a grandmother and five of her grandchildren taking cover in the water. under a jetty. these photos were taken by the grandfather, who you just heard from. the fire raged for three hours. three of those grandkids didn't know how to swim, and they had to hold on tight. they eventually got on a dinghy. 90 homes in the area went up in flames, including the grandparents' home. >>> in the northwest coast of australia, another incredible image. a red dust storm created by a tropical storm out at sea that's approaching land and we'll be right bac